General

  • Target

    n2m18_Payment_receipt.js

  • Size

    81KB

  • Sample

    211026-ya3tlaaafq

  • MD5

    b52fe288ee67ceccaeee80dc4749c358

  • SHA1

    38c1641f3aa617170306572bfd41e8a30b42d693

  • SHA256

    0aeb9b8280cf3a77ec5e44ff5b3866aa17f011a1e0b47dd7b70133d8fd607b56

  • SHA512

    dbf83aee7ad7a2691883226a5a960a3b7e7484fcc96a4023572f30e4e34e35647ecf52b918f5323f625a474183bf716e01ab580ab13329d56638677643418c43

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

kenimaf.duckdns.org:8090

Mutex

543e7469-d950-4ec2-a110-de54f8d16167

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    kenimaf.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-08-01T06:39:50.225932136Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    8090

  • default_group

    kenn

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    543e7469-d950-4ec2-a110-de54f8d16167

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    kenimaf.duckdns.org

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    true

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Extracted

Family

vjw0rm

C2

http://6200js.duckdns.org:6200

Targets

    • Target

      n2m18_Payment_receipt.js

    • Size

      81KB

    • MD5

      b52fe288ee67ceccaeee80dc4749c358

    • SHA1

      38c1641f3aa617170306572bfd41e8a30b42d693

    • SHA256

      0aeb9b8280cf3a77ec5e44ff5b3866aa17f011a1e0b47dd7b70133d8fd607b56

    • SHA512

      dbf83aee7ad7a2691883226a5a960a3b7e7484fcc96a4023572f30e4e34e35647ecf52b918f5323f625a474183bf716e01ab580ab13329d56638677643418c43

    • NanoCore

      NanoCore is a remote access tool (RAT) with a variety of capabilities.

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

    • Windows security bypass

    • suricata: ET MALWARE Possible NanoCore C2 60B

      suricata: ET MALWARE Possible NanoCore C2 60B

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Drops startup file

    • Loads dropped DLL

    • Windows security modification

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Disabling Security Tools

2
T1089

Modify Registry

3
T1112

Discovery

System Information Discovery

2
T1082

Tasks